营区不同场所蟑螂侵害状况及热烟雾技术杀灭效果观察

Observation on Invasion of Cockroaches in the Barrack and the Killing Effect of the Thermal Fog Method

[目的]评价热烟雾技术在营区不同场所的灭蟑螂效果。[方法]利用热烟雾机将热烟雾剂按50 mg/m3对观察场所施药,于30 d和90 d后重复施药并观察灭蟑螂效果;以药激法考察蟑螂密度和灭蟑螂率。[结果]调查4种场所,蟑螂侵害率为58.78%,其中以食堂侵害率(92.96%)为最高;第1次用热烟雾剂杀灭率为89.64%,第2次灭前密度较第1次灭后有明显回升,除食堂外,杀灭率均达到100.00%;第3次除食堂和生活服务中心还有少量蟑螂,其它场所均未发现蟑螂,且杀灭率达100.00%。[结论]热烟雾技术对营区室内密闭较好场所具有良好的灭蟑螂效果,但对密闭较差的场所灭效较差。

[Objective]To evaluate the effect of killing cockroaches in the barrack with the thermal fog method.[Methods]With the thermal fogger,the thermal fog（50 mg/m3） was pressed in the observed spaces for three times on the 0,30,90 day,and observed the effect of killing cockroaches.Calculated the cockroach density and the killing rate with the medicine-defying method.[Results]The total invading rate of cockroach was 58.78% in all places,and the highest rate was 92.96% in dining room.The total killing rate was 89.64% at the first time.After 30 days,the cockroach density increased significantly,and the killing rates were 100.00% at the second time except the dining room.After 90 days,just a few cockroaches were found in dining room and the service center,and the killing rates were 100.00% at the third time.[Conclusion]The thermal fog method is effective in killing cockroaches in closed places,but the killing effect decreases significantly in open places.